Omega Orthodontics Inc Watch

from SB-2/A 1 page Omega Orthodontics, Inc. 3621 Silver Spur Lane Acton, Ca 93510 September 25, 1997 Dear : Reference Is Made to That Certain 15% Senior Promissory Note Issued to You (The "Purchaser") by Omega Orthodontics, Inc. ("Omega") in the Original Principal Amount of $ Due September 30, 1997 (The "Note"). in Consideration of the Mutual Premises and the Mutual Covenants Contained Herein and in the Note, and Other Good and Valuable Consideration, the Receipt and Sufficiency of Which Is Hereby Acknowledged, the Purchaser and Omega Hereby Agree to Amend the Note by Removing All References to September 30, 1997 as the Maturity Date of the Note and Replacing Them With October 31, 1997. Except as Expressly Amended or Modified Hereby, the Note Shall and Does Hereby Remain in Full and Effect and Is Hereby Ratified and Confirmed in All Respects. if You Agree With the Amendment Set Forth Above, Please Date and Sign the Enclosed Copy of This Letter and Return One Executed Copy to Steven E. Borgeson at Robinson & Cole Llp. Very Truly Yours, Omega Orthodontics, Inc. Robert J. Schulhof, President and Chief Executive Officer Accepted and Agreed as of the 26th Day of September, 1997

from SB-2/A 1 page Instruments Defining Rights of Security Holders

from SB-2/A ~5 pages Instruments Defining Rights of Security Holders

from SB-2 ~20 pages Instruments Defining Rights of Security Holders

from SB-2 ~20 pages Instruments Defining Rights of Security Holders

from SB-2 ~5 pages 15% Senior Promissory Note

from SB-2 ~10 pages Subscription Agreement